CompTIA A+ Core 2 (220-1102) — Question 654

A technician suspects a rootkit has been installed and needs to be removed. Which of the following would BEST resolve the issue?

Answer options

• A. Application updates
• B. Anti-malware software
• C. OS reinstallation
• D. File restore

Correct answer: C

Explanation

The most effective method to remove a rootkit is to perform an OS reinstallation (C), as this ensures that all malicious components are completely eradicated. While anti-malware software (B) can help in detecting and removing some threats, rootkits can be particularly resilient and may not be fully removed without reinstalling the operating system. Application updates (A) and file restore (D) do not directly address the rootkit issue.